Quick Fix: All about Eggs.
Recipes often stipulate a room temperature egg. Warm up whole eggs in a bowl of hot water for about 10 minutes before mixing into your batter.
Brown eggs are not more healthful than white ones, but free-range chicken eggs (whatever their color) will produce the healthiest eggs.
Have you ever seen blue eggs? Chickens lay eggs the same color as their ears. Really! Though difficult to check under all the feathers, some breeds of chickens have white, brown, green, and even blue ears.
If you have any concerns about eating raw eggs, use pasteurized eggs in which the recipes will not be fully cooked.